FILE PHOTO: Worker Damien Smith holds wheat grains as he assists with loading a train at the town of Mallala, located north of Adelaide, South Australia, August 20, 2018. REUTERS/David Gray
FILE PHOTO: Worker Damien Smith holds wheat grains as he assists with loading a train at the town of Mallala, located north of Adelaide, South Australia, August 20, 2018. REUTERS/David Gray